1 files changed, 15 insertions, 0 deletions
diff --git a/platform/platform-tests/testSrc/com/intellij/openapi/editor/impl/AbstractEditorTest.java b/platform/platform-tests/testSrc/com/intellij/openapi/editor/impl/AbstractEditorTest.java
index 5dd8bbb8c424..fd774b5e817d 100644
--- a/platform/platform-tests/testSrc/com/intellij/openapi/editor/impl/AbstractEditorTest.java
+++ b/platform/platform-tests/testSrc/com/intellij/openapi/editor/impl/AbstractEditorTest.java
@@ -34,6 +34,7 @@ import java.util.Arrays;
 import java.util.List;
 import java.util.Scanner;
 import java.util.regex.MatchResult;
+import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
 import static org.junit.Assert.assertArrayEquals;
@@ -94,6 +95,20 @@ public abstract class AbstractEditorTest extends LightPlatformCodeInsightTestCas
     ));
   }
 
+  protected static void foldOccurrences(String textToFoldRegexp, final String placeholder) {
+    final Matcher matcher = Pattern.compile(textToFoldRegexp).matcher(myEditor.getDocument().getCharsSequence());
+    myEditor.getFoldingModel().runBatchFoldingOperation(new Runnable() {
+      @Override
+      public void run() {
+        while(matcher.find()) {
+          FoldRegion foldRegion = myEditor.getFoldingModel().addFoldRegion(matcher.start(), matcher.end(), placeholder);
+          assertNotNull(foldRegion);
+          foldRegion.setExpanded(false);
+        }
+      }
+    });
+  }
+
   /**
    * Setups document of the {@link #getEditor() current editor} according to the given text that is expected to contain
    * information about document lines obtained from the {@link DocumentImpl#dumpState()}.